Heater



Jan. 31, 1928. r 1,657,645 w. ROGERS HEATER Filed Feb.25. 1927 v2 Sheets-Sheet 1 Jan. 31, 1928.

HEATER Filed- F eb.25, 1927 2 Sheets-Sheet 2 55 lo I 9 i ll lil Patented Jan, 31, 1928.

WALTER ROGERS, OF

CHICAGO, ILLINOIS.

HEATER.

Application filed February 25, 1927. Serial No. 170,814.

T1118; inventiiim relates to hot water heaters. of the class that aremade up of a plurality of series or batteries of units.

The main objects of. this invention are to provide a water heater that is so arranged thatthe heat from the burner and the, products of combustion are baffled by the water conduits so 'efiectively that a very highdegree of eiiiciency is secured from the burner; to provide a water heater which can be made up of a plurality of standardized unit water conduits which can bereadily assembled in superimposed spaced relation and the assembled batteries located with respect to each other so that a tortuous passage for theheat from the burner is provided.

An illustrative embodiment of the inven tion is shown in theaccompanying drawings, in which, I 1

Fig. 1 is a vertical, sectional elevation of the improved water heater, taken on the line 11 of Fig. 2; I

Fig. 2 is a vertical, sectional elevation, showing a single battery of superimposed water conduits;

Fig. 3 is a view in perspective of one of the standardized water conduit units,

Fig. 4: is an enlarged, sectional detail of the means for providing communication between the units when assembled in superimposed relation; and,

Fig. 5 is an enlarged, sectional detail showing the tie rod opening which passes through the middle of each of the water eon- .duit units. I Y i I In the manufacture of water heaters it is very desirable to secure a heater which will have high efficiency, i. e., will utilize to the maximum the heat from the products-of combustion, and this is secured in the present invention by arranging the water con, duits in overlapping spaced relationship to each other in such manner as to provide tortuous passageways upwardly through the heater for the products of combustion, causing the heat to be baflled against a large numher of surfaces, all of which are positioned so to be substantially at right angles to the path of the heat, thus causing the heat to impinge against a flat wall.

Furthermore, in the manufacture of heaters, it is very desirable that the heater be made up of a plurality of standardized units of similar form. In this way the units are readily interchangeable and replaceable, and require minimum number of parts'being kept in stock for assembling purposes, or for maintaining service in the heaters when in use.

In the construction shown? in the drawings, the heater comprises a plurality of cast iron water conduits 1 which. are of rectangular, slablike form, with the lateral edges thereof tapered outwardly, as shown at 2 and 3, so as to be of elongated lozenge shape in cross section. The upper and lower surfaces of the conduits 1 are provided nearthe ends thereof with upstanding, annular rings 4 which are cored to communicate with the interior of the casting, and each .end of the corn duit is provided with a laterally extending ear 5 having a hole 6 therein through which a tie bar may be passed.

The means provided for sealing the units together comprises a short tubular nipple 7 the exterior surface of which is tapered both ways from the middle, the medial point of the outside of such nipple being ofslightly greater diameter than the interior diameter of the collars 4 so that when placed between. two of said collars and the units clamped together, a watertight construction will be secured, as shown in Fig. 40f the drawings. The collars 4, however, may be interiorly I threaded and the nipple 7 provided with exterior threadsat the ends thereof for threading into said collars.

In making up the Water heater,a plural-- ity of the units 1 are assembled in superimposed relationship, as shown. in Figs. 1 and 2, the upstanding collars 4 and connecting nipples 7 causing the units to be in spaced relationship to one another. A standardized form of unitary individual header 101ming a collar 11 formed thereon is connected to each superimposed series of units 1, one I being attached to the upper side of the series.

at one end thereof, and another being attached to thelower side of the series at the opposite end thereof. as shown inFig. 2, provlding outlet and lulet manlfolds, respectively, for the batteries of conduits. T he respective top and bottom openings 12 and 13 of each battery opposite to the openings which communicate with the headers 10 may be closed by suitable plugs screwed, or otherwise suitably secured therein.

In the form shown in the drawings, the" heater is made up ofthree batteries or series of water conduits and the middle battery is provided with special manifolds or conduits, the upper one 15 havinga short neck or colt lar 1G thereon, and the lower one 17 having a relatively long neck 18 thereon, so that when the headers are end-toend in communication with each other and in the same lateral plane. the conduits of the middle battery will be supported at a plane above the outside conduits a distance equal to one-half the distance between centers of the conduits when assembled, and the headers and are of snflicient length so that when abutting endwise, the laterally tapered edges of each battery of conduits will be in overlapping spaced relationship to those of the next succeeding battery, i. e.. said edges will extend into the spaces between the conduits of the next succeeding battery in spaced relation thereto so as to form a tortuous passageway upwardly through the heater for the prodnets of combustion.

The manifolds 1t), 15 and 17 are each provided at their opposite ends with openings (not shown) which communicate with the iiiterior thereof and which are of a size to receive double-tapered tubular collars (not shown) similar to the collars 7 for sealing connnunication between the manifolds. The manifolds are also provided with lugs 20 which are bored to receive tie bars 2i having nuts 22 thereon for fastening the manifolds together and for securing the batteries against relative lateral shifting.

The sides of the manifolds are also provided with lugs 25 formed lengthwise thereon and drilled to receive a tie bar therethrough.

In assembling the heater shown in the drawings a suitable supporting framework. preferably formed of angle iron, is provided for mounting the batteries of units in assembled relationship, and comprises vertical suli 'iorting legs having lateral tie bars 31 for securing them together, and at one side of the frame a supporting cross bar of angle ir'on 32 upon which the lugs of the lower or intake manifolds rest, said supporting bar being drilled in registry with the opening through the lug to receive tie bars 35 which are passed through the holes in cars 5 of each of the units in that series and through the lugs :25 and supporting bar Nuts :56 are provided on the ends of the tie bars in the usual manner.

An exterior housing 10 is provided for surrounding the heater and a fuel burner all is located within the housing 4-0 underneath the series of batteries of water conduits for heating them in the usual manner.

ater intake pipes are provided for conducting water to the lower or intake manifolds and outlet pipes it; are provided for communicating with the upper or outlet manifolds. The center of each of the units 1 is provided with an opening 4!) therethrough, as shown in Fig. .3, which does not communicate with the interior of the unit. and through which a main tie bar :30 is passed, nuts 51 being threaded on the opposite ends thereof for tightly binding the units of each series together.

In the construction shown. the heater comprises three series or banks of the standardized units and it will be readily understood that a heater may be ttsFfGli'lbltBtl having any number of series of units with any number of units in each series. in the same manner as shown herein, the standardization of both the manifolds and the water conduits providing unlimited flexibility in the matter of size or capacity in the constructon of the water heater.

Although but one specific embodiment of this invcntion has been herein shown and do scribed, it is to be understood that details of the construction shown may be altered or omitted without departing from the spirit of this invention, as defined by the following claim.

Iclaim:

A hot water heater comprising a plurality of bottom manifold units of substantially identical construction abutting against and communicating with each other. a tie rod for holding said manifolds in assembled relationship, a plurality of adjacent series of water conduits, each series con'iprising a plurality of SHPQIllllPOSGtl slab-lke conduits arranged in spaced relation to and connnuni eating with each other and resting upon and communicating with said bottom manifold units. a series of conduits being provided for each manifold unit, a plurality of top mani fold units of substantially identical construction as said bottom manifold units. redingr upon and communicating with said plurality of series of conduits. a plurality of tie l'()(l binding said conduits and top and button; manifolds together in assembled relation ship. the lateral edges of the conduit of each series being in overlapptul. spaced relation to the lateral edges of the next adjacent series of conduits to provide a tortuous passageway, and a fuel burner beneath Hlltl conduits for heating the same.

Signed at Chicago this 23rd day of February, 19:27.

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